Racing authorities have demanded thoroughbred owner and alleged Ponzi scheme operator Bill Vlahos appear for questioning at a hearing next Thursday, February 27.
At the hearing Mr Vlahos, who is also under investigation by Victoria Police over his Edge betting syndicate, is to be questioned by Racing Victoria chief investigator Dale Brown.
Mr Brown is leading Racing Victoria's investigation into Mr Vlahos' racehorse business, BC3, which collapsed in December along with the Edge.
Punters poured more than $140 million into the Edge, and believed their investment had swollen to about $500 million.
However, Mr Vlahos' trustee in bankruptcy Clyde White, of PCI Partners, said he had yet to recover any appreciable amount.
"Minor funds, but nothing substantial," Mr White said.
If Mr Vlahos appears at the hearing, set for 2pm, it is likely to be the first public sighting of him since December 9, when he was allegedly bashed and a ute containing vital Edge documents set on fire at BC3's Surf Coast training facility.
The move to question Mr Vlahos comes as Victoria Police steps up their probe into the punting club.
Fairfax Media has learnt fraud squad detectives last week interviewed victims of the scheme, concentrating their questions on when and how Mr Vlahos may have made any promises to Edge members.
Victims have been asked whether Mr Vlahos made representations verbally or in writing.
They have also been asked whether there was any sign any other person was involved in any alleged deceit.
In emails to Edge members last year, Mr Vlahos laid much of the blame for the betting club's financial woes on a Dubai-based associate, Daniel Maxwell, who he claimed laid the club's bets on the international market.
There is no evidence as yet that Mr Maxwell exists.
"No, I haven't found him, I certainly haven't," Mr White said.
"That certainly is quite a big burning question."
This week Mr Brown wrote to Mr Vlahos' lawyers asking for Mr Vlahos to come to the hearing.
While no response has so far been received, racing authorities are hopeful Mr Vlahos will attend.